HarmonyOS uv timer定时器不准确？

void TimerCallback(uv_timer_t *handle) { 
  OH_LOG_Print(LOG_APP, LOG_INFO, 1u, "test", "TimerCallback runxxxxxxx"); 
} 
uv_timer_t* timer = new uv_timer_t(); 
static napi_value testTimer(napi_env env, napi_callback_info info) { 
  uv_timer_init(uv_default_loop(), timer); 
  OH_LOG_Print(LOG_APP, LOG_INFO, 1u, "test", "start timer"); 
  uv_timer_start(timer, TimerCallback, 1000, 1000); 
  return nullptr; 
}
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